If the virus can stay around until next fall then unless a vaccine is
develop the virus will have mutated for the worse.
Pathogenic bacteria will mutate to become more
resistant towards antibiotic. With virus I don't know
how it will mutate for the worse to its host and for
its own benefit at the same time. Common flu has been
mutating for ages but it is no more or less lethal
than it used to be. From Darwin's perspective nature
will want the coronavirus to mutate to a form less
contagious for its own survival, I would think.
Coronavirus is not as deadly as SARS for
which no vaccine needed to be developed.
But it is more contagious than SARS. Hopefully
this will end as swiftly as the SARS epidemic.